6.7 Cummins TUrbodiesel
Chrysler spun off their pickup business from the Dodge brand into the Ram Truck Division in 2010. The goal was to build a brand that truck buyers could better identify themselves with. Like many, we miss the Dodge brand, but their strategy seems to be paying off. Not only has Ram Trucks succeeded in broadening their reach, but their quality has never been better. Many will agree that Dodge diesel owners were Cummins' customers first when they decided to purchase their vehicle, but this state of mind seems to have changed drastically, as has the company's line of 3/4 and 1 ton trucks. Capability, quality, and refinement are words you could use with confidence when describing the latest offerings from Ram, who continues to offer the prized 6.7L Cummins turbodiesel in their heavy duty pickups. The 6.7L Cummins was first introduced midway through the 2007 model year, replacing the legendary 5.9L. While many of us were sad to see the tried and true B series replaced for good, the 6.7L Cummins has evolved in ways that the 5.9L simply could not. As the 6.7L needs to meet strict emissions regulations, it comes equipped with a diesel particulate system and, recently, SCR with the use of DEF has become standard. What started as a 610 lb-ft engine has transformed into a class leading 900 lb-ft behemoth. Not without its fair share of problems upon the engine's debut, Ram and Cummins seem to have worked out the kinks.
Manufacturer | Cummins Inc |
Displacement | 6.7L, 409 cubic inches |
Configuration | Inline 6 cylinder diesel |
Bore x Stroke | 4.21 x 4.88 inches |
Block/Heads | • Cast iron engine block • Cast iron cylinder heads |
Injection | Bosch high pressure common rail |
Turbocharger | Single variable geometry turbocharger (VGT) |
Horsepower | 350 hp @ 3,013 rpm (intro) 385 hp @ 2,800 rpm (2016 - 2018 MY, H.O. model) |
Torque | 650 lb-ft @ 1,600 rpm (intro) 900 lb-ft @ 1,700 rpm (2016 - 2017 MY, H.O model) 930 lb-ft @ 1,700 rpm (2018 MY, H.O model) |
Engine Weight | 1050 lbs (dry) |
Emissions Equipment | • Exhaust gas recirculation • Diesel particulate filter w/ active regeneration • SCR w/ DEF (introduced 2013) |
Alternative Fuels | B20 biodiesel compatible |
6.7 Ford Power Stroke
Displacement is where the similarities end - the Cummins and Power Stroke are two very different beasts fighting for top honors in the same category. Ford has always seemed to favor the customers who need a tough truck, and it's no secret that they have and continue to garner much of their business from fleets of all sizes across the United States. The Super Duty manages to balance the practicality and capability of a pickup with just the right amount of luxurious appeal, depending on how deep you want to dive into your pockets. The 6.7L Power Stroke brings a level of innovation and refinement that we'd yet to see in a Power Stroke diesel, with such advancements as the twin sequential turbocharger (now outdated and replaced by a single turbo), weight saving compact graphite iron engine block, and air-to-water charge air cooler. Common problems? There's really none to speak of, save for the hiccups that were quickly corrected when the new diesel mill debuted. With their 6.7L Power Stroke, Ford has proven that quality comes from collaboration within, and the level of harmony between the engine and the rest of the Super Duty's powertrain pays homage to their efforts.
Manufacturer | Ford Motor Company |
Displacement | 6.7L, 409 cubic inches |
Configuration | V-8 diesel |
Bore x Stroke | 3.90 x 4.25 inches |
Block/Heads | • Compact graphite iron (CGI) engine block • Aluminum cylinder heads |
Injection | High pressure common rail |
Turbocharger | DualBoost single sequential turbocharger (2011 - 2014), single VGT (2015+) |
Horsepower | 390 hp @ 2,800 rpm (intro) 440 hp @ 2,800 rpm (2016 - 2017 MY) 450 hp @ 2,800 rpm (2018 MY) |
Torque | 735 lb-ft @ 1,600 rpm (intro) 860 lb-ft @ 1,600 rpm (2016 MY) 925 lb-ft @ 1,800 rpm (2017 MY) 935 lb-ft @ 1,800 rpm (2018 MY) |
Engine Weight | 990 lbs (dry) |
Emissions Equipment | • Exhaust gas recirculation • Diesel particulate filter w/ active regeneration • SCR (selective catalyst reduction) w/ DEF |
Alternative Fuels | B20 biodiesel compatible |